in a fast-acting chewable. gas-x. pressure's off. tonight, the scandadathat has engulfed billionaire rupert murdoch is unfolding at breathtaking speed. the whistle blower who rocked murdoch's media empire, one of his reporters, was found dead, though foul play is not suspected. the editor of murdoch's tainted tabloid, rebekah brooks, arrested. and two top police chiefs, including the head of england's mighty scotland yard, resigned. and, now, a powerful father has to try to protect his son. here is abc's jeffrey kofman. >> reporter: just because they own tv networks doesn't mean the murdochs, father and son, like being on them. but, tomorrow, rupert and james murdoch will be stars of their own version of "dynasty," as they are grilled live by outraged british politicians. >> he worries not just about the company he built -- he didn't inherit this company, he built it.